At approx 42 minutes into the movie, they show Bobby Brady climbing out of his racecar wearing a helmet and goggles. About 2 minutes later, they show him climbing back into his car. You can see instead of a windshield, there is a screen in it's place. Although this is common for dirt track cars to have this, no track would allow a driver to only wear a helmet with goggles. They are required to wear a full faced helmet with a Lexan cover for safety.